Add requested allocation size information to fatal error when heap is exhausted.

runtime/vm/heap.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/heap.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/compiler_stats.h"
 #include "vm/flags.h"
@@ skipping 75 matching lines @@
       OS::PrintErr("New space (%dk) Old space (%dk) "
                    "Code space (%dk) Stub Code space(%dk)\n",
                    (new_space_->in_use() / KB),
                    (old_space_->in_use() / KB),
                    (code_space_->in_use() / KB),
                    (stub_code_space_->in_use() / KB));
     }
     addr = old_space_->TryAllocate(size);
     if (addr == 0) {
       // TODO(cshapiro): Support possible heap growth and OOM exception.
-      FATAL("Exhausted heap space.");
+      FATAL1("Exhausted heap space, trying to allocate %d bytes.", size);
     }
   }
   return addr;
 }
 
 
 uword Heap::AllocateCode(PageSpace* space, intptr_t size) {
   ASSERT(Isolate::Current()->no_gc_scope_depth() == 0);
   ASSERT(Utils::IsAligned(size, OS::PreferredCodeAlignment()));
   uword addr = space->TryAllocate(size);
@@ skipping 142 matching lines @@
   isolate()->IncrementNoGCScopeDepth();
 }
 
 
 NoGCScope::~NoGCScope() {
   isolate()->DecrementNoGCScopeDepth();
 }
 #endif  // defined(DEBUG)
 
 }  // namespace dart